Reference no: EM132028059

1.) Find the equation of the regression line for the given data. Then use the regression equation to predict the value of y for each of the given? x-values. The number of hours 6 students spent for a test and their scores on that test are shown below.

Hours spent studying

1

2

3

4

5

6

Test Score, y

38

44

53

45

63

71

a. Find the regression equation.

b. Predict the value of y for? x=3

c. Predict the value of y for? x=2.5

2.) The number of hours 10 students spent studying for a test and their scores on that test are shown in the table. Is there enough evidence to conclude that there is a significant linear correlation between the? data? Complete parts a through d to answer the question.

Use a=0.1

Hours, x

0

1

2

4

4

5

5

6

7

8

Test score, y

40

40

53

49

64

69

76

80

84

94

?a) Set up the hypothesis for the test.

?b) Identify the critical? value(s).

?c) Calculate the test statistic.

d) What is your? conclusion?